JP2013052573A - 車載用樹脂製中空部品及びその製造方法 - Google Patents
車載用樹脂製中空部品及びその製造方法 Download PDFInfo
- Publication number
- JP2013052573A JP2013052573A JP2011191878A JP2011191878A JP2013052573A JP 2013052573 A JP2013052573 A JP 2013052573A JP 2011191878 A JP2011191878 A JP 2011191878A JP 2011191878 A JP2011191878 A JP 2011191878A JP 2013052573 A JP2013052573 A JP 2013052573A
- Authority
- JP
- Japan
- Prior art keywords
- polyamide resin
- cylindrical
- resin composition
- laser
- polyamide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 229920005989 resin Polymers 0.000 title claims abstract description 16
- 239000011347 resin Substances 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 229920006122 polyamide resin Polymers 0.000 claims abstract description 84
- 239000011342 resin composition Substances 0.000 claims abstract description 53
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 238000003466 welding Methods 0.000 claims abstract description 23
- 238000002844 melting Methods 0.000 claims description 35
- 230000008018 melting Effects 0.000 claims description 35
- 229920000305 Nylon 6,10 Polymers 0.000 claims description 15
- 238000005304 joining Methods 0.000 claims description 14
- 229920000572 Nylon 6/12 Polymers 0.000 claims description 12
- 230000001678 irradiating effect Effects 0.000 claims description 11
- 229920000642 polymer Polymers 0.000 claims description 9
- 239000011358 absorbing material Substances 0.000 claims description 6
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 150000004985 diamines Chemical class 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 2
- 239000008188 pellet Substances 0.000 description 24
- 239000012815 thermoplastic material Substances 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 229920002302 Nylon 6,6 Polymers 0.000 description 9
- 239000006096 absorbing agent Substances 0.000 description 8
- 239000002826 coolant Substances 0.000 description 8
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- -1 polyhexamethylene Polymers 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 4
- GBRBMTNGQBKBQE-UHFFFAOYSA-L copper;diiodide Chemical compound I[Cu]I GBRBMTNGQBKBQE-UHFFFAOYSA-L 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000010705 motor oil Substances 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 235000011037 adipic acid Nutrition 0.000 description 2
- 239000001361 adipic acid Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- ILRSCQWREDREME-UHFFFAOYSA-N dodecanamide Chemical compound CCCCCCCCCCCC(N)=O ILRSCQWREDREME-UHFFFAOYSA-N 0.000 description 2
- TVIDDXQYHWJXFK-UHFFFAOYSA-N dodecanedioic acid Chemical compound OC(=O)CCCCCCCCCCC(O)=O TVIDDXQYHWJXFK-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- FWLHAQYOFMQTHQ-UHFFFAOYSA-N 2-N-[8-[[8-(4-aminoanilino)-10-phenylphenazin-10-ium-2-yl]amino]-10-phenylphenazin-10-ium-2-yl]-8-N,10-diphenylphenazin-10-ium-2,8-diamine hydroxy-oxido-dioxochromium Chemical compound O[Cr]([O-])(=O)=O.O[Cr]([O-])(=O)=O.O[Cr]([O-])(=O)=O.Nc1ccc(Nc2ccc3nc4ccc(Nc5ccc6nc7ccc(Nc8ccc9nc%10ccc(Nc%11ccccc%11)cc%10[n+](-c%10ccccc%10)c9c8)cc7[n+](-c7ccccc7)c6c5)cc4[n+](-c4ccccc4)c3c2)cc1 FWLHAQYOFMQTHQ-UHFFFAOYSA-N 0.000 description 1
- GVNWZKBFMFUVNX-UHFFFAOYSA-N Adipamide Chemical compound NC(=O)CCCCC(N)=O GVNWZKBFMFUVNX-UHFFFAOYSA-N 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920006121 Polyxylylene adipamide Polymers 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical class C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 239000003429 antifungal agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000003484 crystal nucleating agent Substances 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- LKKPNUDVOYAOBB-UHFFFAOYSA-N naphthalocyanine Chemical compound N1C(N=C2C3=CC4=CC=CC=C4C=C3C(N=C3C4=CC5=CC=CC=C5C=C4C(=N4)N3)=N2)=C(C=C2C(C=CC=C2)=C2)C2=C1N=C1C2=CC3=CC=CC=C3C=C2C4=N1 LKKPNUDVOYAOBB-UHFFFAOYSA-N 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920006111 poly(hexamethylene terephthalamide) Polymers 0.000 description 1
- 229920006128 poly(nonamethylene terephthalamide) Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 150000004032 porphyrins Chemical class 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- PWEBUXCTKOWPCW-UHFFFAOYSA-N squaric acid Chemical class OC1=C(O)C(=O)C1=O PWEBUXCTKOWPCW-UHFFFAOYSA-N 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical class [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
- B29C65/1661—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined scanning repeatedly, e.g. quasi-simultaneous laser welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
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- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
- B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
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- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/65—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles with a relative motion between the article and the welding tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
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- B29C66/93451—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed by controlling or regulating the rotational speed, i.e. the speed of revolution
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
- B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
- B29C65/1616—Near infrared radiation [NIR], e.g. by YAG lasers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/82—Testing the joint
- B29C65/8207—Testing the joint by mechanical methods
- B29C65/8246—Pressure tests, e.g. hydrostatic pressure tests
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
- B29C66/7311—Thermal properties
- B29C66/73115—Melting point
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Abstract
【解決手段】本発明の車載用樹脂製中空部品は、ポリアミド樹脂組成物を含有する組成物からなる第1の円筒部と、これと同一のポリアミド樹脂組成物を含有する組成物からなる第2の円筒部と、レーザー溶接によって形成され第1の円筒部の端部と第2の円筒部の端部とを接合している接合部とを備え、接合部の外径DOに対する接合部の厚さTOの比TO/DOが0.01〜0.3であり且つ接合部の外径DOが120mm以下である。
【選択図】図2
Description
図1,2に示す中空部品10は、ポリアミド樹脂組成物を含有する熱可塑性材料(組成物)からなり、自動車やバイクに搭載するエレメントを収容するためのものである。中空部品10は、円筒部(第1の円筒部)1aを有する第1の部材1と、円筒部(第2の円筒部)2aを有する第2の部材2と、円筒部1a,2aの端部1b,2b同士が接合してなる接合部5とを備える。図2(a)に示すように、中空部品10は、第1の部材1及び第2の部材2によって内部に空間が形成されており、エレメント(例えば、サーモエレメント)を収容できるようになっている。
次に、車載用樹脂製中空部品の製造方法の製造方法について説明する。ここでは、図7を参照しながら、中空部品10を製造する方法を例に挙げて詳細に説明する。この方法は、第1の部材1の端部1bと第2の部材2の端部2bとをレーザー溶接によって接合することを特徴とする。レーザー溶接中空部品20,30,40,50も中空部品10と同様にして製造することができる。ポリアミド樹脂組成物を含む熱可塑性材料からなる部材同士をレーザー溶接する手法としては、例えば、特許第4102424号公報に記載の方法が知られている。
(1)気密性試験
中空部品の突出部(図1の突出部1d)に耐圧ホースの一端を接続し、耐圧ホースの他端を圧力ゲージ付コンプレッサーに接続した。水を満たした水槽に中空部品を入れ、中空部品の内部をコンプレッサーで加圧した。中空部品の接合部から気泡が発生した時点のゲージ圧を測定した。
(2)耐塩化カルシウム性試験
作製した中空部品を80℃の温水に8時間にわたって浸漬させた。温度90℃、相対湿度95%の雰囲気下に1時間放置した後、塩化カルシウム35質量%水溶液を中空部品の表面全体に塗布した。100℃の熱風乾燥機内に1時間放置した後、室温の条件下に1時間以上放置した。その後、上記(1)と同様にして気密性試験を行った。
(3)耐LLC性試験
作製した中空部品を120℃のLLC溶液に400時間にわたって浸漬させた。LLC溶液として、トヨタ純正スーパーLLC50%水溶液を用いた。LLC溶液から中空部品を取り出した後、室温の条件下に1時間以上放置した。その後、上記(1)と同様にして気密性試験を行った。
(4)耐ATF性試験
作製した中空部品を150℃のATF(automatic transmission fluid)に500時間にわたって浸漬させた。ATFとして、トヨタ純正ATFオートフルードWSを用いた。ATFから中空部品を取り出した後、室温の条件下に1時間以上放置した。その後、上記(1)と同様にして気密性試験を行った。
(5)耐エンジンオイル性試験
作製した中空部品を150℃のエンジンオイルに500時間にわたって浸漬させた。エンジンオイルとして、トヨタ純正エンジンオイルSMを用いた。ATFから中空部品を取り出した後、室温の条件下に1時間以上放置した。その後、上記(1)と同様にして気密性試験を行った。
(6)耐熱エージング性試験
作製した中空部品を150℃の熱風乾燥機内に500時間放置した後、室温の条件下に1時間以上放置した。その後、上記(1)と同様にして気密性試験を行った。
低融点ポリアミドとしてポリアミド610(融点:約220℃)を使用し、これを含む熱可塑性材料のペレットを調製した。このペレットを射出成形機に導入し、図1の部材1,2と同様の構成の2つの部材を作製した。これらの部材をレーザー溶接によって接合して図1の中空部品10と同様の構成の部品を作製した。なお、上記方法の詳細は以下のとおりである。
400Lオートクレーブ中に40%SH塩(セバシン酸とヘキサメチレンジアミンの等モル塩)水溶液に、ヨウ化カリウム3質量%、ヨウ化銅0.1質量%を仕込み、1.8MPa加圧下で加熱溶融重合を行った。得られた重合体を冷却固化及び造粒してポリアミド610のペレットを得た。
上記ポリアミド610のペレット64.5質量部、ガラス繊維33質量部(日本電気硝子株式会社製、商品名:T275H)、レーザー溶着用着色マスターバッチ2.5質量部(オリヱント化学工業株式会社製、商品名:eBIND ACW−9871)をバレル温度290℃に設定した二軸押出機(東芝機械株式会社製、商品名:TEM35)を用いて溶融混練して熱可塑性材料のペレットを得た。
上記熱可塑性材料のペレットをシリンダー温度290℃に設定した射出成形機(住友重機械工業株式会社製、商品名:SE130)に導入し、金型温度80℃で成形して2つの部材を作製した。
上記2つの部材の端部同士を突き合わせ、治具で固定した。2つの部材及び治具を保持装置に設置した。図7に示す矢印R方向に300回転/分の速度で2つの部材を回転させながら、1分間にわたって当接面にレーザー溶接機からレーザー(出力150W、波長940nm)を照射して中空部品を得た。
実施例1において準備した2つの部材と寸法(図2の(b)に示すTO、T、DO又はDM)が異なる2つの部材から中空部品をそれぞれ作製したことの他は、実施例1と同様にして中空部品を作製し、その評価を行った。表1に結果を示す。
ポリアミド610のペレットの代わりに、以下のようにして調製したポリアミド612(融点215℃)のペレットを用いたことの他は、実施例1〜4と同様にして中空部品をそれぞれ作製し、それらの評価を行った。表2に結果を示す。
400Lオートクレーブ中に40%DH塩(ドデカン2酸とヘキサメチレンジアミンの等モル塩)水溶液に、ヨウ化カリウム3質量%、ヨウ化銅0.1質量%を仕込み、1.8MPa加圧下で加熱溶融重合を行った。得られた重合体を冷却固化及び造粒してポリアミド612のペレットを得た。
ポリアミド610のペレットの代わりに、上記ポリアミド612ペレットと、以下のようにして調製したポリアミド66(融点:265℃)のペレットとを併用したことの他は、実施例1〜4と同様にして中空部品をそれぞれ作製し、それらの評価を行った。ポリアミド612ペレットとポリアミド66の配合比率は1:1(質量比)とした。表3に結果を示す。
400Lオートクレーブ中に40%AH塩(アジピン酸とヘキサメチレンジアミンの等モル塩)水溶液に、ヨウ化カリウム3質量%、ヨウ化銅0.1質量%を仕込み、1.8MPa加圧下で加熱溶融重合を行った。得られた重合体を冷却固化及び造粒してポリアミド66のペレットを得た。
ポリアミド610のペレットの代わりに、以下のようにして調製したポリアミド66(融点:265℃)のペレットを用いてポリアミド樹脂組成物を調製したことの他は、実施例1〜4と同様にして中空部品をそれぞれ作製し、それらの評価を行った。表4に結果を示す。
400Lオートクレーブ中に40%AH塩(アジピン酸とヘキサメチレンジアミンの等モル塩)水溶液に、ヨウ化カリウム3質量%、ヨウ化銅0.1質量%を仕込み、1.8MPa加圧下で加熱溶融重合を行った。得られた重合体を冷却固化及び造粒してポリアミド66のペレットを得た。
Claims (11)
- ポリアミド樹脂組成物を含有する組成物からなると共に第1の開口を端部に有する第1の円筒部と、
前記第1の円筒部と同一の前記ポリアミド樹脂組成物を含有する組成物からなると共に第2の開口を端部に有する第2の円筒部と、
レーザー溶接によって形成され、前記第1の円筒部の前記端部と前記第2の円筒部の前記端部とを接合している接合部と、
を備え、
前記接合部の外径DOに対する前記接合部の厚さTOの比TO/DOが0.01〜0.3であり且つ前記接合部の外径DOが120mm以下である、車載用樹脂製中空部品。 - 前記ポリアミド樹脂組成物は、ジアミンと炭素数9〜15のジカルボン酸の重合体からなり且つ融点Tmが190〜240℃である低融点ポリアミド樹脂を、当該ポリアミド樹脂組成物に含有されるポリアミド樹脂100質量%に対して40質量%以上含有する、請求項1に記載の車載用樹脂製中空部品。
- 前記ポリアミド樹脂組成物は、前記低融点ポリアミド樹脂と異なる第2のポリアミド樹脂を含有する、請求項2に記載の部品。
- 前記第1及び第2の円筒部をそれぞれ構成する前記組成物は、レーザー吸収材を更に含有するものであり、前記接合部は前記第1及び第2の円筒部の端部の外側から内側の径方向にレーザーを照射して形成されたものである、請求項1〜3のいずれか一項に記載の部品。
- 前記接合部の外径DOに対する前記第1の円筒部及び前記第2の円筒部における最大外径DMの比DO/DMが1.3以下である、請求項1〜4のいずれか一項に記載の部品。
- 前記第1の筒状部、前記第2の筒状部及び前記接合部は、内面が面一であり、前記接合部に隣接した箇所の厚さTに対する前記接合部の厚さTの比TO/Tが1〜1.5である、請求項1〜5に記載の部品。
- 前記低融点ポリアミド樹脂は、ポリアミド610、ポリアミド612及びこれらの混合物からなる群から選ばれる一種である、請求項1〜6のいずれか一項に記載の部品。
- 車載用樹脂製中空部品の製造方法であって、
ポリアミド樹脂組成物を含有する組成物からなると共に第1の開口を端部に有する第1の円筒部と、前記第1の円筒部と同一の前記ポリアミド樹脂組成物を含有する組成物からなると共に第2の開口を端部に有する第2の円筒部とを、前記端部同士を突き合わせた状態に保持する工程と、
突き合わされた状態の前記端部に向けてレーザーを照射して接合部を形成する工程と、
を備え、
前記接合部の外径DOに対する前記接合部の厚さTOの比TO/DOが0.01〜0.3であり且つ前記接合部の外径DOが120mm以下である方法。 - 前記ポリアミド樹脂組成物は、ジアミンと炭素数9〜15のジカルボン酸の重合体からなり且つ融点Tmが190〜240℃である低融点ポリアミド樹脂を、当該ポリアミド樹脂組成物に含有されるポリアミド樹脂100質量%に対して40質量%以上含有する、請求項8に記載の方法。
- 前記ポリアミド樹脂組成物は、前記低融点ポリアミド樹脂と異なる第2のポリアミド樹脂を含有する、請求項9に記載の方法。
- 前記第1及び第2の円筒部をそれぞれ構成する前記組成物は、レーザー吸収材を更に含有するものであり、前記第1及び第2の円筒部の端部の外側から内側の径方向にレーザーを照射して前記接合部を形成する、請求項8〜10のいずれか一項に記載の方法。
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